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MAX8760 Datasheet(PDF) 5 Page - Maxim Integrated Products

Part No. MAX8760
Description  Dual-Phase, Quick-PWM Controller for AMD Mobile Turion 64 CPU Core Power Supplies
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX8760 Datasheet(HTML) 5 Page - Maxim Integrated Products

 
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Dual-Phase, Quick-PWM Controller for AMD
Mobile Turion 64 CPU Core Power Supplies
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, VCC = VDD = V SHDN = V SKIP = VS0 = VS1 = 5V, VFB = VCMP = VCMN = VCSP = VCSN = 1.3V, OFS =
SUS = GNDS = D0–D5 = GND, TA = 0°C to +85°C, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Current-Balance
Transconductance
Gm(IBAL)
400
µS
GATE DRIVERS
DH_ Gate-Driver On-Resistance
RON(DH)
BST_ - LX_ forced to 5V
1.0
4.5
High state (pullup)
1.0
4.5
DL_ Gate-Driver On-Resistance
RON(DL)
Low start (pulldown)
0.4
2
DH_ Gate-Driver Source/Sink
Current
IDH
DH_ forced to 2.5V,
BST_ - LX_ forced to 5V
1.6
A
DL_ Gate-Driver Sink Current
IDL(SINK)
DL_ forced to 5V
4
A
DL_ Gate-Driver Source Current
IDL(SOURCE) DL_ forced to 2.5V
1.6
A
DL_ rising
35
Dead Time
tDEAD
DH_ rising
26
ns
VOLTAGE-POSITIONING AMPLIFIER
Input Offset Voltage
VOS
-1
+1
mV
Input Bias Current
IBIAS
OAIN+, OAIN-
0.1
200
nA
Op Amp Disable Threshold
VOAIN-
3
VCC - 1
VCC -
0.4
V
Common-Mode Input Voltage
Range
VCM
Guaranteed by CMRR test
0
2.5
V
Common-Mode Rejection Ratio
CMRR
VOAIN+ = VOAIN- = 0 to 2.5V
70
115
dB
Power-Supply Rejection Ratio
PSRR
VCC = 4.5V to 5.5V
75
100
dB
Large-Signal Voltage Gain
AOA
RL = 1k
Ω to VCC/2
80
112
dB
VCC - VFBH
77
300
Output Voltage Swing
|VOAIN+ - VOAIN-|
≥ 10mV,
RL = 1k
Ω to VCC/2
VFBL
47
200
mV
Input Capacitance
11
pF
Gain-Bandwidth Product
3
MHz
Slew Rate
0.3
V/µs
Capacitive-Load Stability
No sustained oscillations
400
pF
LOGIC AND I/O
SHDN Input High Voltage
VIH
0.8
V
SHDN Input Low Voltage
VIL
0.4
V
SHDN No-Fault Threshold
VSHDN
To enable no-fault mode
12
15
V
High
2.7
REF
1.2
2.3
Three-Level Input Logic Levels
SUS, SKIP
Low
0.8
V
Logic Input Current
SHDN, SKIP, SUS
-1
+1
µA
D0–D5 Logic Input High Voltage
1.6
V


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